nginx – FastCGI缓存始终是MISS

所以,我设置了FastCGI缓存,如下所示：

location ~ \.php(/.*)?${
    fastcgi_cache RWI;
    fastcgi_cache_valid 200 60m;

    set $nocache 0;
    if ($request_method = POST)
    {
        set $nocache 1;
    }

    if ($http_cookie ~ (rwi_userid*|rwi_password*)) {
        set $nocache 1;
    }

    if ($request_uri ~* "/(vb/admincp/)") {
        set $nocache 1;
    }

    fastcgi_no_cache $nocache;
    fastcgi_cache_bypass $nocache;

    fastcgi_split_path_info ^((?U).+\.php)(/?.+)$;
    fastcgi_param PATH_INFO $fastcgi_path_info;
    fastcgi_pass "unix:/var/www/vhosts/system/{domain}/php-fpm.sock";
    include /etc/nginx/fastcgi.conf;
}

在服务器{}块之上,我有：

fastcgi_cache_path /var/cache/nginx levels=1:2 keys_zone=RWI:100m inactive=60m;
fastcgi_cache_key "$scheme$request_method$host$request_uri";
add_header X-Cache $upstream_cache_status;

问题是我的PHP脚本(vBulletin)总是发送一个Pragma& Cache-Control私有.当上述规则不适用时,有没有办法忽略这些标题并强制FastCGI使用缓存？我有点迷失在这种缓存的可能性中.
最佳答案
当用作反向代理以满足HTTP中间缓存规范时,Nginx会解释一堆头文件.这意味着以下标头(如果您的应用程序回复中存在)将更改缓存行为,如下所述：

• The “X-Accel-Expires” header field sets caching time of a response in
  seconds. The zero value disables caching for a response. If the value
  starts with the @ prefix,it sets an absolute time in seconds since
  Epoch,up to which the response may be cached.

• If the header does not
  include the “X-Accel-Expires” field,parameters of caching may be set
  in the header fields “Expires” or “Cache-Control”.

• If the header
  includes the “Set-Cookie” field,such a response will not be cached.

• If the header includes the “Vary” field with the special value “*”,
  such a response will not be cached (1.7.7). If the header includes the
  “Vary” field with another value,such a response will be cached taking
  into account the corresponding request header fields (1.7.7).

但是,nginx附带fastcgi_ignore_headers指令,以防您想关闭它.所以你要找的是：fastcgi_ignore_headers Cache-Control Pragma;.